
.aaa{
    border: 2px solid rgb(247, 247, 247);
    border-radius: 5px;
    width: 400px;
    height: 400px;
    background-color: rgba(255, 255, 255, 0.7);
    margin: 240px auto;
}
/* .aaa img{
    width: 100%;
} */
body{
    width: 100%;
    height: 0;
}
html{
    width: 100%;
    height: 100%;
    background: url("../imgs/背景大图.jpeg") no-repeat;
    background-size: 100%;
}
#user{
    width: 260px;
    height: 35px;
    margin-top: 50px;
    margin-bottom: 30px;
    /* margin-left: 20px; */
}
#pass{
    width: 260px;
    height: 35px;
    /* margin-left: 20px; */
}
label{
    font-size: 20px;
    margin-left: 20px;
}
.btn{
    width: 120px;
    height: 42px;
    margin-left: 50px;
    margin-top: 30px;
    /* margin: 30px 1px 30px 60px; */
    
}
.tx{
    width: 200px;
    height: 130px;
    /* border: 1px solid rgb(152, 152, 152); */
    /* border-radius: 50%; */
    /* background: url("../imgs/头像.jpeg") no-repeat; */
    /* background-size: 80px 80px; */
}
.tx img{
    width: 100px;
    height: 100px;
    border-radius: 50%;
    margin:  35px 145px;
}